The Berkshire Opera Festival is set to open its 2023 summer season with “Breaking the Mold: Baroque, Bel Canto, and Beyond.” The concert will showcase arias and ensembles spanning 300 years, on July 22 at Mahaiwe Performing Arts Center. Audiences will get hear music that ranges from Händel to Heggie. The performance will feature a cast of some of BOF’s {…}